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FR3127787B1 - Air ejection nozzle for nacelle, acoustically treated - Google Patents

Air ejection nozzle for nacelle, acoustically treated Download PDF

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Publication number
FR3127787B1
FR3127787B1 FR2110533A FR2110533A FR3127787B1 FR 3127787 B1 FR3127787 B1 FR 3127787B1 FR 2110533 A FR2110533 A FR 2110533A FR 2110533 A FR2110533 A FR 2110533A FR 3127787 B1 FR3127787 B1 FR 3127787B1
Authority
FR
France
Prior art keywords
air ejection
nacelle
ejection nozzle
internal
fairing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
FR2110533A
Other languages
French (fr)
Other versions
FR3127787A1 (en
Inventor
Vincent Dutot
Jean-Philippe Joret
Marc Versaevel
Vincent Lefeuvre
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Safran Nacelles SAS
Original Assignee
Safran Nacelles SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Safran Nacelles SAS filed Critical Safran Nacelles SAS
Priority to FR2110533A priority Critical patent/FR3127787B1/en
Priority to CN202280077728.7A priority patent/CN118302600A/en
Priority to PCT/FR2022/051868 priority patent/WO2023057714A1/en
Priority to EP22797430.0A priority patent/EP4413244A1/en
Publication of FR3127787A1 publication Critical patent/FR3127787A1/en
Priority to US18/627,959 priority patent/US20240253804A1/en
Application granted granted Critical
Publication of FR3127787B1 publication Critical patent/FR3127787B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02K—JET-PROPULSION PLANTS
    • F02K1/00—Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto
    • F02K1/44—Nozzles having means, e.g. a shield, reducing sound radiation in a specified direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D33/00—Arrangement in aircraft of power plant parts or auxiliaries not otherwise provided for
    • B64D33/04—Arrangement in aircraft of power plant parts or auxiliaries not otherwise provided for of exhaust outlets or jet pipes
    • B64D33/06—Silencing exhaust or propulsion jets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D29/00—Power-plant nacelles, fairings or cowlings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02K—JET-PROPULSION PLANTS
    • F02K1/00—Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto
    • F02K1/78—Other construction of jet pipes
    • F02K1/82—Jet pipe walls, e.g. liners
    • F02K1/827—Sound absorbing structures or liners
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2220/00—Application
    • F05D2220/30—Application in turbines
    • F05D2220/32—Application in turbines in gas turbines
    • F05D2220/323—Application in turbines in gas turbines for aircraft propulsion, e.g. jet engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/96—Preventing, counteracting or reducing vibration or noise
    • F05D2260/963—Preventing, counteracting or reducing vibration or noise by Helmholtz resonators

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Nozzles (AREA)

Abstract

Tuyère d’éjection d’air pour nacelle, traitée acoustiquement La présente invention se rapporte à une tuyère d’éjection d’air (6) de nacelle (1) pouvant être traversée par un flux d’air (F), la tuyère d’éjection d’air (6) comprenant une ligne aérodynamique externe (61) et une ligne aérodynamique interne (62) se rejoignant en un bord de fuite (60) et comportant en des positions discrètes (P1, P2) au moins une zone de plus forte épaisseur compensée par un carénage (13, 14) assurant un raccordement des lignes aérodynamiques pour former le bord de fuite (60), ledit carénage (13, 14) comportant une paroi externe (140a, 141a, 141b) et une paroi interne (140b; 141b) délimitant entre elles une cavité (140c ; 141c), la paroi interne (140b; 141b) assurant la continuité de la ligne aérodynamique interne (62), et où la paroi externe (140a, 141a) est pleine et la paroi interne (140b; 141b) est percée de sorte que ledit carénage (13, 14) forme une structure d’atténuation acoustique. Figure de l’abrégé : Figure 7Air ejection nozzle for nacelle, acoustically treated The present invention relates to an air ejection nozzle (6) for a nacelle (1) which can be traversed by an air flow (F), the nozzle d air ejection (6) comprising an external aerodynamic line (61) and an internal aerodynamic line (62) meeting at a trailing edge (60) and comprising in discrete positions (P1, P2) at least one zone of greater thickness compensated by a fairing (13, 14) ensuring connection of the aerodynamic lines to form the trailing edge (60), said fairing (13, 14) comprising an external wall (140a, 141a, 141b) and an internal wall (140b; 141b) delimiting between them a cavity (140c; 141c), the internal wall (140b; 141b) ensuring the continuity of the internal aerodynamic line (62), and where the external wall (140a, 141a) is solid and the internal wall (140b; 141b) is pierced so that said fairing (13, 14) forms an acoustic attenuation structure. Abstract Figure: Figure 7

FR2110533A 2021-10-05 2021-10-05 Air ejection nozzle for nacelle, acoustically treated Active FR3127787B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FR2110533A FR3127787B1 (en) 2021-10-05 2021-10-05 Air ejection nozzle for nacelle, acoustically treated
CN202280077728.7A CN118302600A (en) 2021-10-05 2022-10-03 Air nozzle for acoustic treatment of nacelle
PCT/FR2022/051868 WO2023057714A1 (en) 2021-10-05 2022-10-03 Acoustically treated air-ejector nozzle for a nacelle
EP22797430.0A EP4413244A1 (en) 2021-10-05 2022-10-03 Acoustically treated air-ejector nozzle for a nacelle
US18/627,959 US20240253804A1 (en) 2021-10-05 2024-04-05 Acoustically-treated air ejection nozzle for a nacelle

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2110533 2021-10-05
FR2110533A FR3127787B1 (en) 2021-10-05 2021-10-05 Air ejection nozzle for nacelle, acoustically treated

Publications (2)

Publication Number Publication Date
FR3127787A1 FR3127787A1 (en) 2023-04-07
FR3127787B1 true FR3127787B1 (en) 2024-07-12

Family

ID=78332990

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2110533A Active FR3127787B1 (en) 2021-10-05 2021-10-05 Air ejection nozzle for nacelle, acoustically treated

Country Status (5)

Country Link
US (1) US20240253804A1 (en)
EP (1) EP4413244A1 (en)
CN (1) CN118302600A (en)
FR (1) FR3127787B1 (en)
WO (1) WO2023057714A1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2224807B1 (en) * 2002-08-14 2007-05-01 Sener, Ingenieria Y Sistemas, S.A. NOISE REDUCTION CONDUCT FOR STATIC COMPONENTS OF AERONAUTICAL ENGINES.
US9732677B1 (en) * 2016-05-12 2017-08-15 Rohr, Inc. Broadband acoustic panels coupled with large secondary cavities to attenuate low frequencies
FR3070308B1 (en) * 2017-08-25 2021-04-09 Safran Nacelles STRUCTURAL AND / OR ACOUSTIC PANEL OF AN AIRCRAFT PROPULSIVE NACELLE ASSEMBLY AND RELATED MANUFACTURING PROCESS
US11448161B2 (en) * 2018-09-10 2022-09-20 Rohr, Inc. Acoustic fairing

Also Published As

Publication number Publication date
EP4413244A1 (en) 2024-08-14
WO2023057714A1 (en) 2023-04-13
FR3127787A1 (en) 2023-04-07
CN118302600A (en) 2024-07-05
US20240253804A1 (en) 2024-08-01

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